Saw-guide



(N6 Model.)

T. J; NBA CY.

SAW GUIDE.

No. 295,792. Patented Mar. 25, 1884.

Inv 675/490 7" wifneas es."

l f Unrrrnn STATES PATENT @FFICE.

THOMAS J. NEAOY, OF MILWAUKEE, \NISGONSIN.

SAW-GUIDE.

{SPECIFICATION forming part of Letters Patent No. 295,792, dated March25, 18841 Application filed March 17, 1883. (No model.)

To all whom, it may concern.-

The arms A B have round shanks fitted into Be it known that I, THOMAS J.NEAGY, of the end holes in the sliding block G, so as to Milwaukee, inthe county of Milwaukee and I slide or turn therein. The arm B extendsbe- State of \Visconsin. have invented certain new and usefulImprovements in Saw-Guides; and I do hereby declare that the followingis a full, clear, and exact description of theinvention, which willenable others skilled in the art to whichit pertains to make and use thesame, reference being had to the accompanying draw ings, and to theletters of reference marked thereon, which form a part of thisspecification.

M yinvention relates to saw guides; and it consists, essentially, of anovel construction and arrangement of the parts, whereby either arm maybe adjust-ed independently or both arms moved laterally without changingtheir relative positions, and whereby the outer arm may be radiallyturned back so as to permit of the changing or removal of the saw.

In the accompanying drawings like letters refer to the same parts ineach figure.

Figure 1 is a perspective view of my improved guide. Fig. 2 is a view ofthe gearcase with the end plate removed. Fig. 3 is a longitudinalvertical section of the guide on the line 2 2, Fig. 1. Fig. l is atransverse vertical section of the same on the line 1 1, Fig. 1; andFig. 5 is a view of the end of the guide toward the saw.

O O is the bed-plate, provided with slots I I at each end, to receivebolts by which the guide is secured-to the saw-frame, and which permit.of its adaptation to saws of different sizes.

G Gis an iron block, provided at each end with transverse holes, intowhich are fitted the shanks of the arms or jaws A and B. It has also acentral threaded perforation passing through it from side to si de,toreceive the adjusting-screw F, by which it may be moved laterally uponthe dovetailed way 0, raised on the. bed-plate G.

H is a gear-case made upon a leaf project ing rearwardly from the centerof the bedplate 'O. It furnishes bearings for and inclosesthe worm-wheelP and pinion N on the shank of screw F.

d d are bolts holding the gear-case together.

yond the block G, and has an eye in its end toward the saw, while thearm A is bent at right angles and provided with a corresponding eye,which, when the arm is in its horizontal position, is directly oppositethe eye in arm B.

a a aresmall pins or blocks of wood or other suit-able material,inserted in the eyes in the ends of the arms A and B in such manner asto present their ends to the sides of the saw just inside of the teethwhen the machine is in proper adjustment. To remove or change saws, thearm A is turned back, as shown in Fig. 3. \Vhen thrown forward, it isarrested and held in the position shown in Figs. 1 and 4 by the lug h,which strikes and rests upon shoulder g on block G, the arm A beingsecured in position by nut and washer K. The inner end of the arm B isturned down, and provided with the threaded sleeve E, which is formed atits protruding end into the square shank L, so as to be turned with awrench in the adjustment of the arm, which turns freely therein, butpartakes of its longitudinal movement as the sleeve is turned in or out.A portion of the hole through which the arm B passes is threaded toreceive the threaded sleeve E. i

D D are set-screws, by which the arms are secured in place when properlyadjusted. The shanks of the arms have a flattened part, m, against whichthe set-screws are depressed.

0 is a gib inserted between the side of the dovetailed way 0 and thegroove in the block G; and b b are small wedges placed in verticalopenings in block G at one side of the way 0, and having threadedspindles extending above the block, and provided with nuts, by which thegib may be drawn snugly up against the way 0, and thereby any wear takenup. The arm A is held in its horizontal position by the lug h, which israised upon its shankclose to block G, and rests upon shoulder g,projecting from the front of block G.

f is a small rod or shaft, secured in the center of worm-wheel P, andprovided with a bracketbearing, a n, which is attached to someconvenient part of the saw-frame. To the end of operator. I

rodf is attached the small hand-wheel M, by l means of which the screw Fis operated, and the block G, with its arms moved in or out while thesaw is in motion without danger therefrom to the operator. The screw Fis provided with a square head, 6, whereby it may be turned with awrench whenever it is :found convenient to. dispense with the worm P andhand-wheel M.

My improved guide operates as follows: The bed-plate 0 having beenadjusted so that the pins a a come just inside of the teeth on the saw,the pin in arm A is brought close up to the side of the saw by turningthe screw F, operating block G. The pin in arm Bis then brought close upto the other side of the saw, by means of the threaded sleeve E, andboth arms are then secured in position by the setscrews D D, and theymay be carried with the block G to either side, and the saw therebygaged to run with great accuracy.

The entire adjustment may be made while the saw is in motion, withoutdanger to the I claim" 1. In a saw-guide, the combination of thelaterally adjustable block G, right-angled arm A, pivotedin blockG,'straight arm B, provided with threaded adjusting-sleer e E, bedplate0, provided with transverse dovetailed way 0, gib c, wedges b I), wormP, and screw F, provided with pinion N, substantially as and for thepurposes set forth.

2. In a saw-guide, the combination of the block G, adapted to movetransversely upon the dovetailed way 0, raised on the bed plate O,bed-plate 0, arms A and B, screw F, pro= vided with the pinion N,worm-wheel P, and rod f, provided with hand-wheel M, substantially asand for the purposes set forth.

3. The combination, in a saw-guide, of the arm-A, provided with the lugh, arm B, provided with the threaded sleeve E, block G, adapted to movetransversely upon the dovetailed way 0, raised on the top of bed-plateO, and provided with the shoulder g, setscrews D D, bed-plate C, withthe gear-case H, inclosing the worm-wheel P and the pinion N, and

the screw F, substantially as and for the purposes set forth.

4. In a saw-guide, the combination of the block G, provided with theright-angled arm A and the adjustable arm B, and capable of lateralmovement upon the bed-plate O, and screwF, having a fixed bearing in anextension from the rear edge of bed-plate O, substantially as and forthe purposes set forth.

7 In testimony that I claim the foregoing as my own I aiiix my signaturein presence oftwo witnesses.

THOMAS J. NEACY.

- Vitnesses:

CrrAs. L. Goss, E. H. BOTTUM.

